'''Aeschylus''' ( or ;
[Jones, Daniel; Roach, Peter, James Hartman and Jane Setter, eds. ''Cambridge English Pronouncing Dictionary''. 17th edition. Cambridge UP, 2006.]
''Aiskhulos''; ; c. 525/524 – c. 456/455 BC) was an ancient Greek tragedian. He is often described as the father of tragedy.
Academics' knowledge of the genre begins with his work,
[R. Lattimore, ''Aeschylus I: Oresteia'', 4]
and understanding of earlier tragedies is largely based on inferences from his surviving plays.
[Martin Cropp, 'Lost Tragedies: A Survey'; ''A Companion to Greek Tragedy'', page 273]
According to Aristotle
, he expanded the number of characters in theater allowing conflict among them; characters previously had interacted only with the Greek chorus|chorus
[The remnant of a commemorative inscription, dated to the 3rd century BC, lists four, possibly eight, dramatic poets (probably including Choerilus,... ]